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anastassius [24]
3 years ago
13

Solve for y 3x + 1/5y = 7

Mathematics
1 answer:
jarptica [38.1K]3 years ago
4 0
I think it is y=35 because u multiply both sides by 5 move the variable right then the final solution is
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Geometry math question no Guessing and Please show work thank you
Daniel [21]

Hello!

Each minute on a clock or watch is 6°, as you divide 360° by 60 minutes. As you can see, 32 minutes elapsed during the class. Therefore we just multiply.

32(6)=192

Therefore, our answer is B) 192.

I hope this helps!

5 0
3 years ago
A mistake was made in mixing the lemonade—<br> PLEASE HELP!!
beks73 [17]

Answer:

Part A:

4 + x = y

0.5*4 + 1*x = 0.7*y

x = 8/3\ quarts\ of\ 100\%\ solution

y = 20/3\ quarts\ of\ 70\%\ solution

Part B:

x + y = 10

2x + 3y = 23

x = 7 and y = 3

Step-by-step explanation:

Part A:

The inicial concentration of the lemonade is 50%, and the volume is 4 quarts, and we will add x quarts of a lemonade with a concentration of 100%, so the total volume will be y, and the concentration will be 0.7, so we have that:

4 + x = y

0.5*4 + 1*x = 0.7*y

Using the value of y from the first equation in the second one, we have:

2 + x = 0.7*(4 + x)

2 + x = 2.8 + 0.7x

0.3x = 0.8

x = 8/3\ quarts

y = 4 + 8/3 = 20/3\ quarts

Part B:

If he shoots a total of ten targets, we can write the equation:

x + y = 10

Each stationary target is 2 points, and each moving target is 3 points, so if the total points is 23, we have:

2x + 3y = 23

If we subtract the second equation by two times the first one, we have:

2x + 3y - 2*(x + y) = 23 - 2*10

2x + 3y - 2x - 2y = 23 - 20

y = 3

x + 3 = 10 ⇒ x = 7

4 0
3 years ago
6/13 by 6/12? what is the answer
Leto [7]
(6/13)/(6/12)= (6/13)*(12/6)= 12/13   
This rule for division applies to all fraction divisions

4 0
3 years ago
Read 2 more answers
Please answer ASAP (math)
SSSSS [86.1K]

Answer: Undefined

Step-by-step explanation:

Replace x with -5

8 0
2 years ago
<img src="https://tex.z-dn.net/?f=%28%20-%20x%20%2B%203%29%20-%20%284x%20-%2010%29" id="TexFormula1" title="( - x + 3) - (4x - 1
VladimirAG [237]

Answer:

-5x+13 given (-x+3)-(4x-10)

Answer:-5x+13

Step-by-step explanation:

We are going to distribute to get rid of the ( ):

-x+3-4x+10

Pair up like terms:

-x-4x+3+10

Combine the like terms:

-5x+13

5 0
3 years ago
Read 2 more answers
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